Answer:
x = -2, y = -1, z = 4
Step-by-step explanation:
4x + 6y - z=-18
z = 18 + 4 x + 6 y
3x +2y - 4z = -24
z = 6 + (3x)/ 4 + y /2
- 5x + 3y + 2z = 15
z = 15/2 + (5x)/2 - (3y)/2
18 + 4 x + 6 y = 6 + (3x)/ 4 + y /2 = 15/2 + (5x)/2 - (3y)/2
x = -22y/13 - 48/13
4(-22y/13 - 48/13) + 6y - (15/2 + (5(-22y/13 - 48/13))/2 - (3y)/2) = -18
Compute the output value of the variables x and y with respect to the input values of x, y, and z coefficients.
Apply the distributive property to create an equivalent expression.
(10x+20y+10z)
Answer:
I think the answer is 40.
Step-by-step explanation:
what are the statements and reasons?
Answer:
A statement is an equation or expression describing the geometrical shape. The reason is the reason for that statement, like "Definition of a straight angle."
Step-by-step explanation:
3 power 4 x 9 power 2
Answer:
3⁴×9²
81×81
6561...............
Some of Amber's daily activities are listed here. Use these descriptions to select the word or symbol that correctly completes each sentence. • Amber spends 3/16 of each day doing homework. • Amber spends 0.25 of each day at school. • Amber spends 1/3 of each day sleeping. (A) 3/16 of a day 0.25 of a day (B) 0.25 of a day 1/3 of a day (C) Amber spends time doing homework than she does at school. (D) Amber spends time sleeping than she does at school.
Answer: (D) Amber spends time sleeping than she does at school.
Step-by-step explanation:
Given that :
• Amber spends 3/16 of each day doing homework.
• Amber spends 0.25 of each day at school.
• Amber spends 1/3 of each day sleeping.
Hence,
Amber spends 0.1875 of a day doing homework, which is (0.1875 * 24) = 4.5 hours
0.25 of each day at school ; (0.25 * 24) = 6 hours
1/3 of each day sleeping ; (1/3 * 24) = 8 hours
Time spent sleeping = 8 hours
Time spent in school = 6 hours
The mean undergraduate cost for tuition, room, board and fees for four-year colleges in the United States was found to be $26,489, with a standard deviation of $3204. If 36 of the four-year colleges are randomly sampled, find the probability that the mean cost for the sample schools is:
Answer:
0.1787
Step-by-step explanation:
It is given that the mean cost of undergraduate program for a four year institutions for tuition, rooms fees and board was =$26,489
And the minimum standard deviation is given as σ = $ 3204
So, the mean normal deviation is , μ = 26,489
and the standard deviation is, σ = 3204
Thus, the probability of the mean cost for sample schools is 0.1787
where can i read Mind If I Read Your Mind free
Answer:
huh???
Step-by-step explanation:
Given GK = XZ and GH = XY, which statement must be true? m∠G > m∠X m∠G < m∠X HG = XZ HK = YZ
Answer: B
m<G<m<x
Step-by-step explanation:
Just did it
Answer:
the second choice is correct B)m∠G < m∠X
Step-by-step explanation: got it right on edge 2020
------------------------------------------------------
Answer:
??
Step-by-step explanation:
What’s the y-intercept of the line?
A.1
B.(0,1)
C.(0,-1/2)
D. 1/2
Answer:
B. (0,1)
Step-by-step explanation:
the y intercept is the (0,y) on the graph where the line intersects.
Answer:
B.(0,1)
Step-by-step explanation:
PLEASE ANSWER ASAP!!!!! :)
Answer:
I believe it is the first option but I'M NOT SURE.
Step-by-step explanation:
The reason I believe this is because distance can't be measured as a negative so it wouldn't be able to be represented as -5 but when calculating air pressure it can.
please help me! i will give brainliest!
Answer:
Step-by-step explanation:
what is 100 divided by 3?
A. Thirty three point 3
B. 33.3
C. 33.3333333333333333333
D. 4
E. ???
Answer:
C 33.3333333333
Step-by-step explanation:
Answer: dude it’s c
Step-by-step explanation: 33 1/3 = 33.3333333333333
solve for w
5w+9z=2z+3w
Yesterday you wanted to make an enormous batch of rolls, so you
borrowed some special yeast from your aunt's top-secret bread
research facility. Once you mixed the yeast, flour, and water, the
dough began to double in volume every minute! After 13 minutes, at
exactly 5:53, your bowl was hali full. At what time will your bowl be
full of dough?
Answer:
6:06
Step-by-step explanation:
After 13 minutes, at exactly 5:53, your bowl was half full. At what time will your bowl be full of dough?
We have;
1/2 full = 13 minutes
1 (full of dough) = x minutes
1/2x = 13 × 1
x = 13 ÷ 1/2
x = 13 × 2
x = 26 minutes
Hence the bowl would be full of dough after 26 minutes.
26 minutes - 13 minutes
= 13 minutes
This means dough increased in size
= After 13 minutes again.
The time at which your bowl be
full of dough is calculated as:
The initial time is was 1/2 full + 13 minutes
5:53 + 13 minutes
=5:66 minutes
= 6 hours 6 minutes = 6:06
The bowl would be full of dough at 6:06
Claire jogs no more than 20 miles per week. Which inequality represents the number of miles she runs each week? A.x > 20 B.x < 20 C. x ≥ 20 D.x ≤ 20
Answer: I’m pretty sure its D
Step-by-step explanation:I will tell you once i finish my test.....
Yes, the correct answer is D. I just finished my test and received a 100.
Mario ran 12 kilometers. One mile is approximately equal to 1.6 kilometers. How many miles did Mario run?
(I'm new, I don't know why it says High School)
Answer:
19.2
Step-by-step explanation:
12x1.6=19.2
Answer:
7.5 miles
Step-by-step explanation:
if one mile = about 1.6 km then you would take the 12 and divide it by 1.6 which will give u 7.5 miles
(also it says high school because of the grade you probably put in)
Solve the equation algebraically
-|x+3|=-2
Answer: x=-1; x=-5
Step-by-step explanation:
1) [tex]-|x+3|=-2[/tex]
2)[tex]|x+3|=2[/tex]
3) [tex]x+3=2[/tex] or [tex]x+3=-2[/tex]
4) [tex]x=-1; x=-5[/tex]
Help please tysm guys <3
Answer:
5 is less than or equal to 5/2x+5
Step-by-step explanation:
It is less than or equal to because the shaded part is below the line and the line is solid.
Factor the polynomial completely
[tex]x {}^{2} + 2x - 63[/tex]
Can u guys help me with 1a-1c
PLEASE ANSWER ILL GIVE POINTS:
if the product (2x + 3)(x + k) is 2x^2 + 13x + 15, what is the value of k?
Answer: k = 5
(2x + 3)(x + k)
= 2x.x +2x.k + 3x + 3k
= 2x² + x(2k + 3) + 3k
because (2x + 3)(x + k) is 2x^2 + 13x + 15
=> 3k = 15
2k + 3 = 10
=> k = 5
Step-by-step explanation:
in the box of decorations there are a number of four bubbles all of them are blue except for six of them are green except for six of them are red except for 6 how many bubbles do I have in total
Answer:
Step-by-step explanation:
But y’all don’t know where Megan at
What is 122.18 rounded to the nearest whole number?
[tex] \frac{2}{6} + \frac{1}{8} [/tex]
help please I forgot how to do this
The distance from Houston to
Galveston is about 50 miles. If there are
1.6 kilometers in a mile, what is the
distance from Houston to Galveston in
kilometers?
Answer:
distance from Houston to Galveston in kilometers will be: 80km
Step-by-step explanation:
Given
The distance from Houston to Galveston is about 50 miles.
i.e.
Kilometers in 1 Mile = 1.6 km
As the distance from Houston to Galveston is about 50 miles, so
The distance from Houston to Galveston in kilometers will be:
50(1.6) = 80 ∵ Kilometers in 1 Mile = 1.6 km
Therefore,
The distance from Houston to Galveston in kilometers will be: 80km
Which of these statements are correct? Select TWO that apply.
Answer:
3 and 1
Step-by-step explanation:
Answer:
last one and third to last one
Step-by-step explanation:
just trust me mate
y=4x+5 in point-slope form
Answer:
Step-by-step explanation:
Answer:
( 0, -1 ) and ( 1, -1 )
Step-by-step explanation:
I hope this helps you out!
8 – 3(4x - 1) >= -49
Answer:
x≤61/12
Step-by-step explanation:
distribute the -3
8-12x+3≥-49
add like terms
12-12x≥-49
subtract 12 from both sides
-12x≥-61
divide by -12, when you divide by a neg the lessthan/greaterthan sign flips
x≤61/12
A nearby school for wizardry is larger. They have 14 times as many students.
How many students attend the school for wizardry?
Answer:
14 times more than the larger school
Step-by-step explanation: This makes no sense, there is no problem to solve, just a statement
State the conclusion based on the results of the test. The standard deviationstandard deviation inin the pressure required to open a certain valve is known to be sigma equals 1.3 psi.σ=1.3 psi. Due to changes in the manufacturing process, the quality-control manager feels that the pressurepressure variabilityvariability has changedchanged. The null hypothesis was rejected.Choose the correct answer below. A. There is not sufficient evidence that the mean of the pressure required to open a certain valve has not changed. B. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed. C. The mean of the pressure has not changed. D. The mean of the pressure has changed. E. There is sufficient evidence that the mean of the pressure required to open a certain valve has not changed. F. There is not sufficient evidence that the mean of the pressure required to open a certain valve has changed.
Answer:
B. There is sufficient evidence that the mean of the pressure required to open a certain valve has changed.
Step-by-step explanation:
We make this conclusion based on these reasons:
We are told that the "null hypothesis was rejected" after the "manager feels that the pressure variability has changed., meaning the null hypothesis was the opposite of what occurred; that is to say, it is the alternate hypothesis that proved true instead."changes in the manufacturing process" form what can be called "sufficient evidence" that the mean of the pressure required to open the valve has changed, thereby going against the null hypothesis.It is based on the above reasons that the null hypothesis was rejected.